ESP32-S2-DevKitM-1 is entry-level development board. Most of the I/O pins on the module are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2-DevKitM-1 on a breadboard.
This section describes how to get started with ESP32-S2-DevKitM-1. It begins with a few introductory sections about the ESP32-S2-DevKitM-1, then Section `Start Application Development`_ provides instructions on how to get the ESP32-S2-DevKitM-1 ready and flash firmware into it.
The development board has a variety of variants to choose from, as shown in the table below.
..list-table::
:header-rows:1
:widths:41 24 9 8 18
* - Ordering Code
- On-board Module [#]_
- Flash
- PSRAM
- Antenna
* - ESP32-S2-DevKitM-1-N4R2
- ESP32-S2-MINI-2
(Recommended)
- 4 MB
- 2 MB
- PCB on-board antenna
* - ESP32-S2-DevKitM-1U-N4R2
- ESP32-S2-MINI-2U
(Recommended)
- 4 MB
- 2 MB
- External antenna connector
* - ESP32-S2-DevKitM-1
- ESP32-S2-MINI-1
- 4 MB
- ---
- PCB on-board antenna
* - ESP32-S2-DevKitM-1U
- ESP32-S2-MINI-1U
- 4 MB
- ---
- External antenna connector
* - ESP32-S2-DevKitM-1R
- ESP32-S2-MINI-1
- 4 MB
- 2 MB
- PCB on-board antenna
* - ESP32-S2-DevKitM-1RU
- ESP32-S2-MINI-1U
- 4 MB
- 2 MB
- External antenna connector
..[#] The ESP32-S2-MINI-2 and ESP32-S2-MINI-2U modules use chip revision v1.0, and the rest use chip revision v0.0. For more information about chip revisions, please refer to `ESP32-S2 Series SoC Errata`_.
If you order a few samples, each ESP32-S2-DevKitM-1 comes in an individual package in either antistatic bag or any packaging depending on your retailer.
* - On-board module (ESP32-S2-MINI-1 or ESP32-S2-MINI-1U in figures above)
- ESP32-S2-MINI series modules with an on-board PCB antenna or a connector for an external antenna. This series of modules, known for its small size, have a flash and/or a PSRAM integrated in the chip package. For more information, please refer to :ref:`user-guide-s2-devkitm-1-v1-ordering-info`.
- All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. Users can program ESP32-S2FH4 chip to enable multiple functions such as SPI, I2S, UART, I2C, touch sensors, PWM etc. For details, please see :ref:`user-guide-devkitm-1-v1-header-blocks`.
- Turns on when the USB power is connected to the board.
* - USB to UART Bridge
- Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
* - Reset Button
- Reset button.
* - Micro-USB Port
- USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2FH4 chip.
* - Boot Button
- Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port.
- On **ESP32-S2-MINI-2U** and **ESP32-S2-MINI-1U** module only. For connector dimensions, please refer to Section External Antenna Connector Dimensions in module datasheet.
Be sure to use an appropriate USB cable. Some cables are for charging only and do not provide the needed data lines nor work for programming the boards.
Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an application example into your ESP32-S2-DevKitM-1.
The two tables below provide the **Name** and **Function** of the pin headers on both sides of the board (J1 and J3). The pin header names are shown in :ref:`user-guide-devkitm-1-v1-board-front`. The numbering is the same as in the `ESP32-S2-DevKitM-1 Schematics <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF).
